Is there a way (keystroke, shortcut, etc.) to switch from within an application to the desktop ? For instance, I am browsing in FireFox (full-screen)... and I want to launch another application whose icon is on the desktop; can I go directly to the desktop or must I minimize all the other apps I have open ?
Forgive me for using the "W" word

but in "Windows" you just hold the Windows-key and hit the "D" key (it's a toggle... do it again and you're back where you were).
I tried a Google search and could not find the answer for PCLOS.